Automatic synchronizing mechanism for chime clocks



Aug. 30, 1932. c. J. LENTZ AUTOMATIC SYNGHRONIZING MECHANISM FOR CHINE CLOCKS Filed Feb. 5, 1926 4 Sheets-Sheet l I I WJNVENTOR ATTORNEYJ Aug. 30, 1932. c. J. LENTZ AUTOMATIC SYNCHRONIZING MECHANISM FOR CHIIE CLOCKS 4 Sheets-Sheet 2 Filed Feb. 5, 192a /ffi .n I) .J. 13

/ INVENTOR.

ATTORNEYS c. J. LENTZ 1 5874,316

HII E CLOCKS Aug; 30, 1932.

AUTOIATIC SYNCHRONIZING MECHANISM FOR 0 Filed Feb. 5, 1926 4 Sheets-Sheet 3 I NVEN TOR.

A TTORNEYS Aug. 30, 1932. c, J -r1 1,874,316

AUTOMATIC SYNCHHONIZING MECHANISM FOR 0mm: CLOCKS 4 sheets-sha 4 Filed Feb. 5, 1926 INVENTOR.

ATTORNEY.

Patented Aug. 30, 1932 oniran sures PATENT OFFICE CLARENCE J'. LENTZ, OE CINCINNATI, OHIO, ASSIGNOR TO THE CINCINNATI TIME RE- CORDER COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO AUTOMATIC. SYNCI-IRONIZING MECHANISM FOR CHIME CLOCKS- Application filed February My invention relates to chime clocks and particularly to automatic mechanism therein which will synchronize chime striking mechanism andgong striking mechanism with the clock operating mechanism, so that, regardless of the position of the hands of the clock with reference to the chime and striking mechanism, the timing of the chimes and the striking mechanism will be automatically controlled by the clock operating mechanism.

In a chime clock there are three essential operating parts, the clock operating mechanism, the chime operating mechanism, and the hour striking mechanism. In a clock without synchronizing mechanism failure to wind the chime operating mechanism will likely resultin the chimes getting out of time with the clock operating mechanism by running down in the act of chiming. Failure to have the chime operating mechanism controlled with the hour striking mechanism will result in the hour striking mechanism getting out'of time with the chimes so that the sound of each will be confused with the sound of the other. Failure to wind the hour striking mechanism will result in the clock not striking the correct hour when the hour striking mechanism is wound up.

It is the object of my invention to provide a synchronizing mechanism which will automatically cause the readjustment of both the hour striking and the chime striking mechanism in accordance with a correctly timed relation to the time mechanism so that failure to wind either the chime operating mechanism or the hour striking mechanism will not result in a continued out of time relation to the time mechanism. It is my object to provide synchronizing mechanism which will automatically readjust both the chimes and the hour striker to the correct relation with the clock hand mechanism and also the correct relation each to the other, so that the clock, after running down. may be set by moving the hands and readjustment of the hour and chime mechanism will automatical- 1y occur.

Chime clocks which have chimes for indicating the quarters and in which the chimes are operated by a rotating cylinder with pins 5, 1926. Serial No. 86,313.

projecting from the outer periphery of the cylinder or a similar device usually play a series of sequences of musical notes by means of the pins.

It will be obvious that in connection with synchronizing of the chime operating mechaism it is not only important that the chimes play a required number of'series of notes, but that the series of notes played will be in correct order. Thus in providing the most practical method of synchronizing the chime mechanism I control the extent of rotation of the chime; cylinder by members operating in time with the clock hand operating mechanism, and I provide amember controlled by the chime operating mechanism which will be adapted to inhibit the stopping of the chime cylinder until the cylinder has rotated sufiiciently for the cylinder to play the series of sequences in their correct order. Thus the chimes at a synchronizing'period will play more than the required number of times, but will always stop at the end of what is properly the last sequence of the series.

The principle of operation of the several component mechanisms is that the operating mechanism is always exerting an operating impulse which is under control of an escapement. The mechanism operating the cylinder is always exerting, an operating impulse which is under control of the chime train which permits the operation of the chime cylinder during definite cycles with relation to the clock hand'mechanism, and the hour striking mechanism is always exerting an operating impulse which is controlled by stopping devices timed with relation to both the clock'hand operating and the chime striking mechanism. It is my object to provide synchronizing mechanism which will regulate the timing of the chiming mechanism and the hour striking mechanism with relation to the time mechanism both independently and conjointly, and I may use both synchronizing devices separately or combine them together.

Referring to the drawings in which I have illustrated preferred mechanism for accomplishing the synchronization hereinbefore re ferred to:

Figure 1 is a front elevation showing a portion of the synchronizing mechanism relating to the chime operation.

Figure 2 is a. frontelevation showing a portion of the synchronizing mechanism relating to the hour strikingmechanism.

Figure 3 isa sectional view of a portion of the mechanism shown in Figure 1 takenalong the lines 33 thereof.

Figure 4 is a sectional view of a portion of the mechanism shown in Figure 1 taken along i the lines 4 4.

Figure 5 is a front elevation showing the synchronizing mechanism for both the chime and the hour striking operation with the chime mechanism moved to inhibited position.

The construction of the chime synchronizing mechanism as illustrated in Figuresland 5 and the detail view in Figures 3 and 4 is as followsz 'lhe hall clock with which my v improvedmechanism is shown in combination, has achime drum'l on which a series of chime hammer operatingplns 2 are so arranged that musical notes will be played in a sequence of harmonlous tunes. A gear train and levermounting housing 3 provides a support for the drum in journals 4. The chime drum 1 has a shaft 1a on which the drum is 7 set as with anadjustment screw. On the shaft 1a there'is a gear 1?) which meshes with the gear 10 on a verticalshaft- 1d. The shaft 1d 11, 12. 13 and 14. As will be later described each step controls an adjustment for one of the quarters of the hour. An arm 15 journaled in themounting face plate 8 on a pivot p1n16 has a downwardly extending portion carrying apin 17 which rides over the steps of the snail. The weight of the arm 15 causes the pin l'v. to engage the steps of the snail. A segmental rack member 18 having teeth'19 extends upwardly from the arm 15 as shown.

Fizredly mounted on a shaft 20 extending through the face plate 8 is agathering pallet '21 having a so that unless inhibited it will engage wits.

the teeth 19 of the segmental rack. The shaft rack engaging pin 22 disposed 20 extends through the face plate and has a pinion 200 Fig. 4' that is part of the chime gear train. Pivoted on another pin 23 ere tending out from the face plate 8 is a gravity pawl. member 24 which has a lower end 25 V. shaped so that it will fit within and engage the rack teeth 19. Journaled on a pivot pin 26 extending out from the faceplate 8 is an arm 27 having a finger 28 extended through I a slot 29 in the face plate. A stud 3O is mounted on the upper portion of the arm 27 in position to lift the pawl member 24. The lower portion of the arm 27 has a trip pawl 31 disposed in position to be raised by each of the four radially extending projections 32 of .acam wheel 33 mounted on the shaft 7 between the snail 10 and the driving gear wheel 9 and fixed with relation to the points of thegear and snail. Inasmuchas the cam memposition with relation to the minute hand 33a of the clock movement; it will be observed.

that unless inhibited every revolution of the snail raises the segmental rack member 18 inaccordance with the particular step of the snail corresponding with the quarter the minute hand is passing, and every revolution of the cam member also raises the arm 27' which w1th its stud raises the pawl member 24 so that the end 25 will not engagethe teeth 19 of the segmental rack at the moment that. the pawl 31 has passed'over the point of a projection 32 on the cam wheel 33. Thus every revolution of the minute hand moves so as not to follow the snail with its pin 17, and the projections 32 raise this pawl only at the quarter hours. I p

The pallet 21 being connected on the shaft:

20 makes-a revolution every time the chime drum moves one set of pins. With every revolution of the pallet the wheel carrying a pin 34a makes a series of complete revolutions always stopping in a position such that the pin 34a is about to engage the finger 28' on the arm 27, but is withheld by the engagement of the tail of the pallet 21 with the stud 35 of the rack 18, which engagement stops the chime train. Then the arm 37 which carries the stud 3O raises the gravity pawl 34, the rack 18 is released and allowed to drop, thereby releasing the pawl and permitting the train to rotate the pin 34a into engagement with the finger 28 to again stop the train so as to allow sufficient time for the rackto fall a distance. determined by the position ofthe snail 10. When the rack 18' is released exactly on the hour,the pin 45 strikes the arm 38, and the finger 40 and the pin 43 are shifted the former into the path of the-pins 42 and the latterunder the member 24 soas to move said member but of engagement with the rack 18 until one of the pins 42 engages the finger 40, and through this operation withdraws the pin 43 from in under the gravity pawl 24 to operatively reengage said pawl i with said rack. V 7 I 1 In accordance with the particular quarter the minute hand passes, the chime train is inhibited until the arm 27 with its finger28 drops outo f position blocking the pin 34a indicated her and the snail are in a positive relative I in Figure 3 on the chime gear train which controls the gathering pawl 21. For example if the minute hand is approaching the first quarter the operation is as follows: The snail 10 will allow the segmental rack I element 18 to drop down to a certain position.

This certain position is such that when the pawl end is raised and then drops, which occurs as the minute hand reaches the quarter, the rack will fall and the second tooth will be engaged by the pawl end 25. As the pawl 31 on the arm 27 drops over one of the projections 32 the finger 28 which is part of the arm 27 drops out of position blocking the chime gear train and the cylinder or drum begins to rotate. The gathering pallet 21 also rotates with the operation of the chime gear train and the drum passes through sufficient distance to ring the chimes for the first quarter and gathers one tooth. The operation of the chime drum is stopped however as soon as the pallet is blocked by contact with a stud 35 at the lower end of the segmental rack member 18. The operation is repeated at the half hour, the only difference being that step 12 of the snail allows the rack to drop sufficiently lower so that the pawl 25 will engage the third tooth of the rack. This will permit the cylinder to pass through two cycles of chime ringing instead of one. The third quarter correspondingly allows three cycles of operation and the fourth quar ter allows four.

Figure 5 shows the chime mechanism in the position it will have after the minute hand has passed a quarter. Of course during regular periods of chime operation the mechanism will not be inhibited by the arm 46 which will be hereinafter described. Shortly before the minute hand reaches the quarter a projection 32 of the cam 33 elevates the pawl 31 of the arm 27. This accomplishes two functions. The stud on the arm 27 elevates the pawl 24 and the finger 28 is moved into position blocking the path of the pin 34a on the chime gear train. The minute hand moves exactly to the quarter and the part 31 drops off the projection 32. Then the pin 17 on the arm 15 falls into a step on the snail 10. The particular step on the snail will determine how far down the arm 15 will drop and what tooth of the rack 18 will be engaged by the pawl end 25. At the same time the lowering of the arm 27 causes the pin 30 to move out from under the pawl 24. The pawl end 25 then engages either the second, third, fourth or fifth tooth of the rack 18. Further as soon as the finger 28 moves out of the path of the pin 34a on the chime gear train, the gears which when unblocked are free to move begin to rotate. The shaft 20 on which one of the chime gear train is fixed will also rotate, and with the rotation of the shaft 20, the gathering pallet will also rotate. The pallet rotates until the pin 35 blocks its further rotation. The mechanism is then in set position for the next quarter.

It will be recalled however that the tunes played on the chime are of different sequences of notes in regular order. If, due to failure to wind the chime operating mechanism, the

clock starts the chimes out of order so that for example, the last series of the hour chimes are played when the minute hand is on the first quarter, the chime tunes played will be improper. The mechanism which, at each hour, synchronizes the chime movement so as to adjust the chime drum with the rack and snail thus regulating the order in which the different series composing the chimes are played is as follows: On a pin 36 fixed in the face plate a sleeve 37, is loosely mounted and carries a lever arm 38 having a weight 39 pivoted to an upwardly extended portion 39a of the lever having an enlarged opening 396 surrounding the pin 23, and so disposed that the weight will at all times hang perpendicular so that if the lever is rocked to the right of its pivot pin 36 the weight will cause it to remain thus rocked and if the lever is rocked to the left of the pivot pin 36 the weight will provide a similar stabilizing effect. The arm 39 is forked at its lower free end and straddles the pin 23, the opening 39?) limiting the rocking of the lever arm 38, 39a. The lever 38 has a finger 40 extended through a slot 41 in the face plate and adapted when lever 38 is rocked counterclockwise to lie in the path of a pin 42 on the gear wheels 42a of the chime train, which gear rotates synchronously with the drum. In this position a pin 43 on the upwardly extending portion 39a of the lever 38 engages the under surface of the pawl 24 and raises it just enough so that the pawl end 25 will not engage the teeth of the segment and the chime gears will operate until such time as the pin 42 on gear wheel 42a moves the finger 40 at the end of the lever 38 enough to rock the lever in a clockwise direction which swings the pin 43 from under the pawl 24 and allows the pawl to engage the teeth of the rack. The pallet 21 will continue to revolve as long as pawl 24 is lifted because the rack will fall back after each gathering action. Vhen the pawl is released, however, the gathering pallet raises the rack until the finger 35 blocks the rotary movement of the said pallet.

The end 44 of the lever 38 lies in the path of a finger 45 on the end of the arm 15. The step 14 of the snail allows the arm 15 to swing down sufficiently far to strike the end 44 of the lever 38 which accomplishes the counterclockwise movement of weight 39 above noted, so that if the chimes are out of their 1 I regular order the chiming of the hour synchronizes the chiming mechanism by chiming until the pin 42 on the chime train moves the lever 38' so as to release the pawl 25 to engage the teeth of the rack. The first its I quarterhour'there-fore always strikeswith thechime drum in thecorrect starting position, due to the proper relation and synchro nous movement of the pin 42, with the chime drum. V 1 It should be understood that shortly before each hour the pin 17 on the arm has always dropped over the lowest part of the shall, and the pin 45 has always engaged the end44 of the lever 38, and the weight is always rocked to the left-of the center of balance so that until the pin 42 on thechime gear 42a rocks the lever clockwise the pall gathering opera 7 tion is blocked. If the mechanism is in time there is only a short interval until the pallet begins to' gather which is not sufficientto acuate any additional chiming notes. If the mechanism is out of time a greater number of nongathering revolutions are made by' the pallet 21 during which interval enough ad- 7 ditional chimes are sounded to bring the parts back to a correctly timed position.

'I have further indicated at 46 an inhibiting lever-pivoted in the face plate which has a handle 47 extending out'from the side ofthe clock. The end 48 opposite the handle may be elevated to bear against the pin of the rack segment 18 thereby inhibiting the chime operation, since the pallet will at once c strike the pin 35' before it can'rotate sufficiently to release the chime drum. This is useful so thatthe hour striking mechanism may function when the chime striking mechanism is not desired. It should be understood that some people do not enjoy the sound of chimes every fifteen minutes during the night hours, so provision is made for inhibiting "it.

v For synchronizing the hour striking mechamsm I have illustrated in Figures 2 and 5 the hour striking mechanism of the clock with the cooperating parts of the chime and clock 'mechanism with which the clock striking mechanism is synchronized. In Figure 2 at 1 i the chimedrum is shown with the chime ham- 'i 5 see Fig. 5. The gear wheel 49 is driven by a reduction gear train from a P1111011 fixed to the minute shaft Fig. 5 which rotates the gear wheel 49 one twelfth as fast as the minute Y "hand gear 6. A snail51 having twelve steps is mounted on a shaft 52 which is pivoted in the face plate 8. Also mountedon the shaft 52 is a gear wheel 53 which. is engaged-with the hourhand driving gear 49. A segmentary rack member 54 is extended from an arm 55 mounted-on a vshaft'56which is pivotally the operation more quiet.

pin onthe chime arm 15. Thecenter of gravity'of-th-e lever ison the pawl end so that unless the opposite end which engages under the pin 45 is moved clockwise clownwardly thep awl willremain in engagement with the teeth of the racks A. spring v62 mounted on the face plate bearing against a lug extended from the arm may be used to counterbalance. the gravitydrop'of the segmentary rack end of the arm 55 which renders Ar gathering pallet 64 is mounted on a shaft which extends through the face plate. Said shaft is normally an extended spindle of one of the hour striking gear/train. The pallet and the step of the one strike, so thatshould the mechanism for driving the hour strike be allowed to run down and the owner turns the has a stud 63, which gathers by engagingthe The snail hasa beveled edge 64a on hands causing the rotation of the snail 51, the

of the rack :18 of the chime to permit the rack 54 tobe released, and in normal operation to swing over sufficiently to permitthe stud 58 to engagethe proper step on the snail resulting inthe gatheringof the proper number of teeth by the hour strike gathering pallet. The pawl lever will then hold the rack 54in positionagainst moving downwardly so as to release the gathering pallet for another striking, until the next hour has come around, during which the snail will have moved one step.

. Supposing the hour strike has stopped and the chime has stopped, andthe user desires to set, the hands. He merely turns them aroundto the correct time and winds theclock and thechime and striking springs or weight cables. There will be instances in which the stud that. controls the position of the hour strike would have blocked revolution of the hour snail, striking the long step between twelve and one. As noted, however, the spring connection permits the stud to ride up onto the face of the snail. When the clock has been set, which is permitted because the shaft 5 is frictionally connected with the escapement mechanism of the clock, and an hour comes around, the several gears and snails Will have revolved around with the hands.

The hour that will strike the first time may not be correct, but when whatever gathering the pallet can do has raised the hour strike rack 54 to the upper end of its movement, the stud 58 will have moved from its position illustrated in Figure 2 to the dotted line position shown in Figure 2 at 58. Then when the next hour comes around the position of the snail 51 will determine how far the stud 58 will rock inwardly before establishing contact with the edge of the cam, so that the correct hour will strike.

One mechanism has not been described which interconnects the chime and the hour strike. This mechanism assures that the hours will not strike until the chimes are finished.v

To this end the stud 45 on the lower end of the chime strike rack, engages the hooked end a of a lever 65b pivoted on the face of the mounting plate, and lifts up this hooked end. The upper end of the lever has a tongue 66 extending through an opening in the mounting plate, and except when lifted, the tongue will block movement of the hour strike train by engagement with a pin 67 on the gear 68 of the said hour train.

The action of the device for stopping the chimes by raising the rack 18 will not permit the hour strike to operate, however, because it is the rack 18 which trips the pawl lever of the hour strike gathering rack.

To stop the chimes without stopping the hour strike, a device is provided to revent the movement of the chime hammers y lifting them away from the chime drum. This mechanism forms part of another invention, but the operatin lever 69 and a few of the connections are s own.

The hour strike is operated by rocking the lever 69, which has a finger 70 thereon that engages the studs 71 on the hour strike gear, which is in the train with the gear, that carries the stop 67. The lever pulls over the hammer 7 2, which will be returned by a spring, so that when the gear revolves the hammer will be operated.

The use of a gathering pallet with a synchronizing device for controlling the operation of the rack pawl isnot novel with me, but so far as I am advised it is novel to employ a member'for lifting the pawl normally which is independent of the snail for locating the position of the rack. The advantages of this are a more positive action of the rack in dropping until its control stud hits the stem of the cam, and the use of the rack itself to release the hour strike mechanism by lifting its gathering rack pawl, The force required to lift this lever is better exercised when the rack falls through a fraction of an inch, than when it gradually moves down in following the snail.

Since the lifting of the device for releasing the chime gather rack pawl must be completed before the chime train, and hence the gathering pallet can move, due to the stop 35, the period when the chimes begin is very definitely located by the sharp drop from the teeth 32.

The chime can also be used Without the hour strike mechanism, but the two are so related as to form an integral structure with conjoint regulated operation, to obtain all of the necessary movement to make the -set ting of the clock automatically correct,

whether the striking and chiming springs run down or the time train runs down and has to be reset. In the resetting it makes no difference if the chime and hour strike make a partial o eration because this will be corrected by the mechanism after the clock has run for an hour.

It will be evident that modifications could be made in the exact shape and arrangement of parts shown, without departing from the spirit of my invention, and I have not at tempted to do more than describe one complete example of my invention. However, the several movements are positive, without necessity of latches and springs.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is 1- 1. In aclock mechanism, the combination of a chime train and a train movable with the time train of the clock, means for controlling the chime train comprising a rack, pawl and gathering pallet, means controlled by the time train to govern the position of the rack, means for lifting the pawl and driven by the time train and means energized by the rack in its position at the hour for raising the pawl to lifted position and holding it up irrespective of the release of the pawl lifting means, and means moving in synchronism with the chimes for releasing the rack energized means at proper position for the normal hour chime to take place.

2. In a clock mechanism, the combination of a chime train and a train movable with the time train of the clock, means for controlling the chime train comprising a rack. pawl and gathering pallet, means controlled by the time train to govern the position of the rack, means driven by the time train for lifting the pawl, and means energized by the rack in its position at the hour for raising the pawl to lifted position, and holding it up irrespective of the releaseof the pawl lifting means, and means moving in synchronism i 1 mechanism having a member which releases with the chimes for releasing the rack anti gized means at proper position for the normal hour chime to take place, the means for lifting the pawl having a memberwhich pre vents the operation of the gathering. pallet until" the pawl has been permitted to drop.

3. In a clock, the combination of a chime strike mechanism, and an hour strike mechanism,f means energized by the chime strike mechanism for setting the hour strike mechanism for operation simultaneously with the setting of the chime strike mechanism at the hour, and means for preventing operation of the hour strike mechanism, said chimestrike mechanism having amember which releases thelas't named means at the close of the operation of the chime mechanism.

4. In a clock, the combination 'of'a chime strike mechanism, and an hour strike mechanism, mens energized by the chime strike mechanism for setting the hour strike mechanism for operationsimultaneously with the setting, of the chime mechanism at the hour, and means for preventing operation of the hour strike mechanism, said chime strike mechanism having a member which releases the lastnamed-rmeans at the close of the operation of the chime mechanism, said means named comprising levers related to the hour strike mechanism and lying in the path of the mechanism which controls the nature of thechime strike. mechanism, one above and the last named means at the close of the operation of the chime mechanism, said means named comprising levers related to the hour strike mechanism and lying in the path of the mechanism which controls the nature of the chime strike mechanism, one above and one below said mechanism, so that one lever is stricken down. and one up, to effect a com- 'plete setting and release for operation of the hour strike mechanism, and means controlled by external adjustment for holding said control mechanism of the chime to hold it out ,iof operation thereby silencing both the strike and the chime. I

6. In a chime strike mecha-nism .'the,com bination of the minute shaft ofa clock and a snail movable by the minute shaft of the clock,a chime train, a rack pivotally supported andfhaving means engaging said snail thereby locating the position of the rack, a

gatherin palleton a'shaft of the chime train, and engaging saidfrack,a-pawl for holding the rack'in position for gathering, means for intermittently releasing the pawl, permitting the rack to drop, a stop on the rack to prevent further gathering of the pawl whena given position of the rack has been reached, in which position the pawl will hold the rack until the next lifting of the pawl, a lever moved by the rack when in its furthest positionas for striking the hour, said lever having a stud to lift said pawl, and means driven by the chime train and arranged to engage said lever to'shift it to position of release of said pawl at the position of the chime trainv when hour chiming should begin.

7. In a chime strike mechanism, the combination of the minute shaft of a clock and a snail movable by the minute shaftof the clock,'a chime train, aV-rack pivotally supported and having means engaging said snail thereby locating the position of'the rack, a gathering pallet on a shaft of the chime train, and engaging said rack, a pawl'for holding the rack-in position for gathering, means for intermittently releasing the pawl, permittin gthe rack todrop, a stop on the rack to pre vent further gathering of thepawlwhen a given position of the rack has been reached, in which position the pawl will holdtherack until the-next lifting of the pawl, a lever moved by the rack'when in its furthest position as for striking the hour, said lever having a stud to lift said pawl, and means driven by the chime" train and arranged to engage said lever to shlft it to posltion of release of said pawl at theposition of'the chime train when hour chiming should begin, saidrack, pawl and, lever operating by. gravity to assume their automatic positions above named;

18,; Ina chime strike mechanism, the com- 'bination ofthe minute shaft of a clock and a snail movable by the minute shaft of the clock, a chime train, a rack pivotally supported and having means engaging said snail thereby locating the position of the rack, a gathering pallet on a shaft of the chime train, and engaging said rack, a pawl for holding the rack in positionfor gathering, means for intermittently releasing the pawl, permitting the rack to drop, a stop on the rack to prevent further gathering of the pawl when a given position of the rack has been reached,

in which position the pawl will hold the rack 7 until the next lifting of the pawl, a lever moved by the rack when in its furthest position as for striking the hour, said lever having 'a stud to lift' said pawl, and means driven by thechime train and arranged to engage said lever to shift it to position of release of :said pawl at the position of the chime train when hourchiming should begin, saidlever havmg a member arrangedin vertical posiotally whereby said lever when moved to tion with a weight thereon depending piveither end of its movement will remain in such position until shifted back again.

9. In a clock chiming and hour striking mechanism, the combination of a minute wheel and an hour wheel, a gathering pallet and a rack for use with said gathering pallet in controlling the chime mechanism operation the position of which is controlled by the minute wheel, a rack for use with the gathering pallet used for the hour striking mechanism operation, whose position is controlled by the hour wheel, a pawl for the hour strike mechanism rack, having an arm extending into the path of the chime gathering pallet rack so as to be moved by the last mentioned rack at the end of the hour into rack releasing position, and a stop for the hour striking mechanism, said stop having an arm also extending into the path of the chime pallet gathering rack so as to be engaged and moved to release the hour striking mechanism, when the said last mentioned rack is in position at the end of a chiming operation.

CLARENCE J. LENTZ. 

